National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

56°F

13°C

Humidity 51%
Wind Speed NW 12 G 17 mph
Barometer 29.74 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 15 Nov 7:35 pm CST
Extended Forecast for

Chillicothe IL

  • Tonight

    Tonight: Clear, with a low around 35. North northwest wind 8 to 11 mph, with gusts as high as 24 mph.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 52. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 52 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31. West northwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 54. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 54 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Rain likely. Cloudy, with a low around 42. East southeast wind 6 to 9 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain Likely

  • Tuesday

    Tuesday: A 30 percent chance of rain before noon. Mostly cloudy, with a high near 54. East southeast wind 8 to 10 mph, with gusts as high as 17 mph.

    High: 54 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. East northeast wind 5 to 7 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Clear, with a low around 35. North northwest wind 8 to 11 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 52. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 31. West northwest wind around 5 mph becoming calm in the evening.
Monday
Increasing clouds, with a high near 54. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
Rain likely. Cloudy, with a low around 42. East southeast wind 6 to 9 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 54. East southeast wind 8 to 10 mph, with gusts as high as 17 mph.
Tuesday Night
Mostly cloudy, with a low around 37. East northeast wind 5 to 7 mph.
Wednesday
Mostly cloudy, with a high near 53.
Wednesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 41.
Thursday
Rain likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 46.
Friday
Rain likely. Mostly cloudy, with a high near 58.
Friday Night
A chance of rain. Mostly cloudy, with a low around 39.
Saturday
Partly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IL
 40.92°N 89.52°W (Elev. 522 ft)
Last Update:
7:32 pm CST Nov 15, 2025
Forecast Valid:
7pm CST Nov 15, 2025-6pm CST Nov 22, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation